1Farrar JT,Pritchett YL,Robinson M. The clinical importance of changes in the 0 to 10 numeric rating scale for worst,least,and average pain intensity:Analyses of data from clinical trials of duloxetine in pain disorders[J].Journal of Pain,2010.109118.
2Zhang W,Takahashi S,Miki T. A pi-lot study exploring the effects of reflex-ology on cold intolerance[J].Journal of Acupuncture,2010.4348.